All the answers are correct, but we expected a more closer link between the four.

The answer: All four- Sikander Bakht, Atal Bihari Vajpayee,Yashwant Sinha, Jaswant Singh (clockwise in picture) have served as Cabinet minister of External Affairs in Atal Bihari Vajpayee led government. Atal Bihari Vajpayee himself held the portfolio from March 19, 1998 to December 5, 1998.